. >> reporter: jeff loewenthal and his 15-year-old daughter samantha were among the 80,000 people at fedex field for sunday's redskins/cowboys game. samantha and jeff, both of whom are avid redskins fans had been looking forward to the game for a while and having a great time until two young women came up to them with about five minutes left in the 2nd quarter and fold the father and daughter they were in their -- told the father and daughter they were in their seats. when an usher came to sort out the confusion, he explained while leading jeff and his daughter from their seats that the two hard copy tickets jeff bought on craigslist that morning for $550 were not valid. >> disgusted. >> reporter: because the original owner of the tickets had already sold the rights to the ticket online, thereby rendering the hard copy tickets invalid. >> i just wanted to stay for the game. >> for a full 41 row 6. >> reporter: danny mata is the owner of greatseats.com, a ticket brokerage in beltsville. he says the electronic ticket revolution has clearly made things a lot more convenient for ticket b